JBL EVOi.net User manual

User’s Guide
Introducing The Next Generation of Installed Sound
A Loudspeaker With Intelligence

CONTENTS
Safety Information . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Design Overview . . . . . . . . . . . . . . . . . . . . . . 3
Features
E Oi.net Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
E Oi.net Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation / Setup. . . . . . . . . . . . . . . . . . . . . . 7
Measurement Microphone . . . . . . . . . . . . . . . . . . . . . . . . 8
Starting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Testing the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Auto EQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Delay Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Live Operation
Selecting System EQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rectangular Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fan Shaped Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 26
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . 28
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
EVOi.net
©2001 JBL Professional

E Oi.net
1
IMPORTANT SAFETY INFORMATION - READ THIS CAREFULLY
This equipment has been tested and found to comply with the following European and international standards for Electromag-
netic Compatibility and Electrical Safety:
Radiated Emmissions (EU): EN55022B (1992)
RF Immunity (EU): IEC801-3 (1994)
Electrostatic Discharge(EU): IEC801-2 (1984)
Fast Transients(EU): IEC801-4 (1988)
Electrical Safety (EU): EN60065 (1994)
Electrical Safety(USA): UL6500/ETL (1996)
Electrical Safety(CAN): CAN/CSA-E65/ETLc (1996)
Before using the apparatus read these instructions, follow all instructions, heed them and keep in a
safe place.
Clean only with a damp cloth. Do not block any of the ventilation openings. Install in accordance with the manufacturer’s
instructions.
Do not defeat the safety purpose of the grounding type plug. A grounding plug has two blades and a third grounding prong. The
third prong is provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replace-
ment of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs, convenience recepticals and the point where they
exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.
Unplug this apparatus during lightning storms or when not in use for a long time.
WARNING – TO REDUCE THE RISK OF FIRE OR SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE.
DO NOT REMOVE COVERS, NO USER SERVICABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
THIS EQUIPMENT MUST BE GROUNDED.
IT SHOULD NOT BE NECESSARY TO REMOVE ANY PROTECTIVE GROUND OR SIGNAL CABLE SHIELD
CONNECTIONS TO PREVENT GROUND LOOPS. ANY SUCH DISCONNECTIONS ARE OUTSIDE THE
RECOMMENDED PRACTICE OF JBL PROFESSIONALAND WILL RENDER ANY EMC OR SAFETY
CERTIFICATION VOID.
For continued compliance with international EMC legislation ensure that all input and output cables are wired with the cable
screen connected to Pin 1 of the XLR connectors. The input XLR Pin 1 is connected to the chassis via a low value capacitor,
providing high immunity from ground loops while ensuring good EMC performance.
DO NOT EXPOSE
TO RAIN OR MOISTURE
CAUTION
RISK OF ELECTRONIC SHOCK
DO NOT OPEN
! NE PAS EXPOSER A
LA PLUIE NI L'HUMIDITE
ATTENTION
RISQUE DE CHOC ELECTRIQUE
NE PAS ENLE ER

E Oi.net
2
INTRODUCTION
WELCOME PACKAGE CONTENTS
Upon unpacking the EVOi.net please take note of the
contents as listed below. If you do not have the contents
listed then please contact your dealer as soon as possible.
EVOi.net Contents:
1 x EVOi.net
1 x AC Power Cord
1 x JBL Measurement Microphone with clip and case
1 x 100’ XLR Balanced Signal Microphone Cable
1 x EVO User’s Guide
Thank you for purchasing an EVOi.net Speaker System
Controller or, if you have been referred to this section via
EVOi.sys, thank you for purchasing an EVOi.sys. As part
of EVO Systems, the EVOi.net provides simple to
understand yet flexible access to the full functionality of
EVO Intelligent Loudspeaker Systems. We like to say the
EVOi.net accesses the intelligence.

E Oi.net
3
DESIGN O ER IEW
The EVOi.net is either supplied in a 19” rack mount
configuration or as part of the EVOi.sys.
Simplicity in the presentation is at the forefront of the
EVOi.net design. For installed loudspeaker systems, it is
not practical to initiate setup and operational function with
control on the actual loudspeakers. Therefore the EVOi.net
simply provides a more convenient remote control of the
functions in the EVO Intelligent Loudspeaker Systems.
The control is presented in two sections: one for installation
and setup; the other for operation. The functions are
initiated with simple button pushes and responses annunci-
ated with colored indicators (LEDs). The hook-up is
enabled with standard signal cable and XLR connectors.
Due to the nature of the technology, no other network
cables are required to communicate button pushes to the
EVO Loudspeakers.

E Oi.net
4
FEATURES
FRONT PANEL
51 7 9842 3 6
1INPUT Indicators
Two sets of LED indicators monitor audio signal levels at
the inputs A(left) and B(right). When the green SIGNAL
indicators are on, the input signals are greater than -40 dB.
Below this threshold, the indicators will be off, signifying
that the input signals are too low for proper amplification or
are disconnected from the system.
When the red CLIP indicators are on, audio signal levels
are 2 dB below the maximum clip level. If the input signals
exceed this level, distortion will result. When you observe
this condition, simply lower the L MIX R (Master)
Faders until the CLIP indicators turn off.
SPEAKER STATUS Indicators
Two sets of LED indicators, OKAY and WARNING,
provide visual status of amplified signal levels driving
EVO loudspeakers connected to the main outputs, 1A (left)
and 2B (right), and the auxiliary outputs, 3A (left) and 4B
(right). The indicator states are:
For easy recognition, OKAY indicators will turn on green,
while WARNING indicators will turn on red.
3ANTI FEEDBACK CONTROL
The ANTI FEEDBACK CONTROL (AFC) section
consists of two mode buttons, FIXED SETUP and LI E
AFC ON, and associated LED indicators for state
confirmation. For detailed operation, see Anti Feedback
Control on page 15.
The LEDs, FILTERS FREE (4, 2, and 1), indicate the
least number of live or fixed AFC filters available to
connected loudspeakers for a selected mode.When no spare
filters remain on one or more loudspeaker circuits, the 1
indicator will flash.
4EQ SELECT
Press EQ SELECT one or more times to select a desired
equalization setting, according to the following sequence:
NEUTRAL SPEECH MUSIC 1 MUSIC 2
An associated LED will light to indicate the current selec-
tion. For detailed operation, see Selecting System EQ on
page 15.
5SETTINGS
Press TEST to start the audio test mode. An orange LED
will turn on, confirming your choice. For detailed opera-
tion, see Starting Up on page 10.
The orange LOCKED LED indicates TEST, AEQ ON,
AUTO EQ SETTING, and DELAY SETTING are
disabled and their parameters are locked via the LOCK-
OUT SWITCH (on the rear panel).
OKAY WARNING SPEAKER STATUS
Off Off Not connected
On Off Connected
On On (flickering) Connected, Output Clipping
On/Off1Off Test Mode, Pink Noise1
Flashing2On (always) Error2
1. See “Testing The System” on page 10
2. See “Speaker Status Error Codes” on page 26
Figure 1
Figure 2 - EQ Select

E Oi.net
5
FEATURES
6AUTO EQ SETTING
AUTO EQ SETTING includes two setup buttons, MAIN
SETUP 1&2 and AUX SETUP 3&4, and associated LED
indicators for state confirmation. For detailed operation,
refer to See Using The Auto EQ Setting on page 11.
After the Auto EQ filters have been set, use AEQ ON to
turn Auto EQ on or off. An associated LED indicator will
confirm your selection.
7DELAY SETTING
Press DELAY SETTING to initiate delay setup on
auxiliary outputs, AUX OUT 3A (left) and AUX OUT 4B
(right). For detailed operation, refer to Delay Setting on
page 14.
The orange SETUP LED will flash during setup and the
green DELAY SET LED will turn on once the delay time
has been set on auxiliary outputs, AUX OUT 3A (left) and
AUX OUT 4B (right).
8POWER Indicator
A green LED indicates EVOi.net is being powered.
9RS 3 Connector
Use this 8-pin mini DIN connector to connect the EVOi.net
to a PC’s RS232 port.

E Oi.net
6
10 RU Mounting Holes
The EVOi.net is equipped with four mounting holes for
installation in one RU (rack unit) space.
11 Power Connector
Insert the enclosed power cord into the IEC connector to
supply the specified AC power.
1 Fuse
The removable fuse protects internal circuits. When
replacing the fuse, be sure to use the same type as speci-
fied.
13 INTERFACE Connectors
Two 8-pin RJ-45/Shellnet connectors, labeled LINK IN and
LINK OUT, will provide interlinking to other EVOi.net
units. Functionality will be determined at a later date.
14 Lockout Switch
To protect settings from being inadvertently changed, press
this recessed button once to disable TEST, AUTO EQ
SETTING, AEQ ON, and DELAY SET and to lock their
parameters. The orange LOCKED LED (under SET-
TINGS on the front panel) will turn on to confirm the
lockout. To restore functionality and to change settings,
press this recessed button once again.
FEATURES
REAR PANEL
15 OUTPUTS (4B/3A), Auxiliary
Two 3-pin male XLR connectors for right (4B) and left
(3A) connection to auxiliary EVOi.324 loudspeakers using
a pair of XLR signal cables.
For mono operation, press MONO SUM to sum the input
signals and route the combination to both outputs. The
mono signal level will be 4 dB lower than the stereo level.
16 OUTPUTS ( B/1A), Main
Two 3-pin male XLR connectors for right (2B) and left
(1A) connection to main EVOi.324 loudspeakers using a
pair of XLR signal cables.
For mono operation, press MONO SUM to sum the input
signals and route the combination to both outputs. The
mono signal level will be 4 dB lower than the stereo level.
17 INPUTS (B/A)
Two 3-pin female XLR connectors for right (B) and left (A)
connection to the EVOi.sys R MIX OUTPUTS L using a
pair of XLR signal cables.
18 SETUP MIC
A 3-pin female XLR connector for connection to the
enclosed measurement microphone using the supplied 100’
XLR signal cable.
Figure 3
1110 1014 1812 13 15 16 17

E Oi.net
7
INSTALLATIONS/SETUP
STARTING UP
Installation Notes
Although installing an EVOi.net is straightforward, please
review the following notes to achieve the best installation:
• Choose a mounting location that provides direct front
panel viewing and easy access to the controls.
• The EVOi.net does not have a power on/off switch and
therefore is “ON” whenever AC power is activated. If
desired, use switched power outlets for master system
control.
• We strongly recommend the use of high-quality,
shielded audio cables for connection to the mixer and
EVO loudspeakers.
Connecting The System
Use Figure 4 (below) as an aid for interconnecting
EVOi.net to up to four EVOi.324 loudspeakers and your
mixer.
For help with loudspeaker placement, refer to EVOi.324 –
Applications on page 7 of the EVOi.324 Users Guide.
Using Mono Sum
If your application calls for mono sound, simply press
MONO SUM on the rear of the EVOi.net. This will sum
the pair of outputs. (See EVOi.net – Features 15 and 16 on
page 6).
NOTE: Activating MONO SUM will lower the output level
by 4 dB.
Input
E Oi.324
Rear
OR
Output on
Generic Mixer
E Oi.net
Rear
E Oi.sys
Rear
XLR Signal Cable
Figure 4 - Basic System Connections

E Oi.net
8
INSTALLATIONS/SETUP
STARTING UP
Connecting Measurement
Microphone
IMPORTANT: EVOi.net is supplied with a dedicated JBL
Measurement Microphone and 100’ XLR - XLR balanced
signal cable. Successful setup will ONLY occur if the JBL
Measurement Microphone is used. When not in use please
keep it in a safe place for future use.
Use the supplied 100’ XLR signal cable to hookup the
Measurement Microphone, as shown in Figure 5 below.
JBL Measurement Microphone
E Oi.net
Rear
100’ XLR Cable (Included)
Figure 6 - The JBL Measurement Microphone with
adapter, 100’ XLR cable and protective case are included
with the E Oi.net Controller and E Oi.sys System.
Figure 7- As your measurement microphone is a precise
audio tool, please keep it in its protective case when not
in use.
Figure 5 - Measurement Microphone Hook Up

E Oi.net
9
INSTALLATIONS/SETUP
STARTING UP
Initial Settings and Powering Up
Upon activation, all of the LEDs on the
front panel should light up once and then
go out. Depending upon whether or not
EVOi.net has been powered up before or
has just been shipped from the factory, the following
indicators will remain on:
INP
U
T
AB
ANTI FEEDBA
C
K
CO
NTR
O
L
SIGNA
FIXED AF
C
S
E
T
FILTERS FREE 1
2
3
LIVE AFC ON
FIXED
S
ET
UP
H
O
LD T
O
C
LEAR FIXE
D
HOLD TO CLEAR LIVE
evo
EVOi.net
SPEAKER SYSTEM CONTROLLER
S
PEAKER
S
TAT
US
12
3
AL
WARNIN
G
O
KA
Y
Understanding Speaker Status
On the front panel, two sets of LED indicators (see
Features on page 4) provide visual status of amplified
signal levels driving EVO loudspeakers. The indicator
states are:
For easy recognition during the “On” state, OKAY indicators
are green, while WARNING indicators are red.
OKAY WARNING SPEAKER STATUS
Off Off Not connected
On Off Connected
On On (flickering) Connected, Output Clipping
On/Off1Off Test Mode, Pink Noise1
Flashing2On (always) Error2
1. See “Testing The System” on page 10.
2. See “Speaker Status Error Codes” on page 26.
Factory Settings
After shipping from Factory the power up defaults will be
as follows…
Settings Power Up State
Delay Setup Off
AEQ On Off
Aux Auto EQ Setup Off
Main Auto EQ Setup Off
Test Off
EQ Select Neutral
Live AFC Off
Fixed AFC Off
Normal Power Up Settings
After first use the power up defaults will be as follows…
Settings Power Up State
Delay Setup Last Known Setting
AEQ On Last Known Setting
Aux Auto EQ Setup Last Known Setting
Main Auto EQ Setup Last Known Setting
Test Off
EQ Select Last Known Setting
Live AFC Last Known Setting
Fixed AFC Last Known Setting
Pushing the Buttons
The soft buttons on EVOi.net have been designed such that
it is very difficult to accidentally activate or switch
something off. To avoid frustration please refer to the
following guideline for button operation:
Press, or Press-and-release means to Press the button and
release it within 1 second.
Press-and-hold means to Press a key and hold it for at
least 2 seconds.
If upon activation the WARNING indictor/s illu-
minate (SPEAKER STATUS), the green OKAY
LED will flash an error code. This is a Speaker
Status Error Code – see Troubleshooting on page
26 and refer to AC Power Up on page 25.
Figure 8

E Oi.net
10
INSTALLATIONS/SETUP
STARTING UP (continued)
Testing the System
At the beginning of or anytime during a system setup, the
hookup configuration of the EVO loudspeaker can be tested
by using the TEST button.
This button is used to control the user audio test mode, i.e.
pressing it will produce ‘pink noise’ output from each EVO
loudspeaker.
The first press of the TEST button will…
1. Enable the Test Mode.
2. Illuminate the orange TEST LED.
3. Cause the first found EVO loudspeaker to transmit
‘Pink Noise’.
4. Flash the relevant Speaker Status Green OKAY LED to
indicate the Limpet transmitting.
Successive presses of the TEST button will…
1. Move the ‘Pink Noise’to the next EVO loudspeaker.
2. Indicate the ‘New Transmitting’ EVO loudspeaker by
flashing the relevant Speaker Status Green OKAY
LED.
When all attached EVO loudspeakers have been tested, the
next press of the TEST button will exit Test Mode and
extinguish the TEST LED. There is a short delay between
pressing the TEST button for the last time and returning all
speakers to normal operation.
EQ SELECT SETTINGS AUTO EQ SETTING
MUSIC I
MUSIC II
SPEECH
NEUTRAL
LOCKED EQ SET
TEST AEQ ON
MAIN OUT
SETUP 1&2
EQ SET
AUX OUT
SETUP 3&
HOLD TO CLEAR MAIN HOLD TO CLEAR MAIN
If the LOCK switch is engaged at any time during Test
Mode, Test Mode will immediately end. The TEST
indicator LED will be extinguished and any EVO loud-
speakers will stop transmitting ‘Pink Noise’.
Figure 9

E Oi.net
11
INSTALLATIONS/SETUP
USING THE AUTO EQ SETTING
1X2X3X
Placing Measurement Microphone
for MAIN EVO Loudspeakers
For simple applications of up to two EVO loudspeakers
hooked up to OUTPUTS 1A and 2B (the MAIN OUT
outputs), optimum placement of the Measurement Micro-
phone is illustrated in Figure 10.
The placement follows a simple height-to-depth ratio of
1:2. For a given loudspeaker height the optimum position is
a distance twice the height away from it, into the listener
area. For instance, if the speaker is 10’ in the air, measure
20’ into the listening area and place the microphone there.
It is very important that the Measurement Microphone
remains on the central axis of the room or listener area,
equidistant from each loudspeaker. See Figures 11 a, b, c.
A rough rule of thumb is that the Measurement Microphone
should remain equidistant from both loudspeakers at a point
approximately 2/3rd the length of the listener area away
from the loudspeakers.
For optimum result please also make note of the type of
floor in the listening area and follow the guide below in
Figures 12a and 12b.
Soft surfaces - Measurement Mic
on a stand at least 6’ high.
Hard surfaces - Measurement
Mic should be laid on the floor.
Figure 10 - Typical Measurement Microphone Placement
Figure 11a - Placement for Single Speaker
Figure 11b - Placement for Stereo Pair
Figure 11c - Placement for Mono Array
Figure 12a - Soft Surfaces (carpet, fabric)
Figure 12b - Hard Surfaces (like Gymnasiums)

E Oi.net
12
INSTALLATIONS/SETUP
SETTINGS AUTO EQ SETTING
LOCKED EQ SET
TEST AEQ ON
MAIN OUT
SETUP 1&2
EQ SET
AUX OUT
SETUP 3&
HOLD TO CLEAR MAIN HOLD TO CLEAR MAIN
Performing Auto EQ for MAIN OUT
Loudspeakers
Before starting, check that the LOCKED indicator is off. If
it is on, then use the rear panel switch (Feature 14 page 6)
to enable Auto EQ buttons.
1. Press the round MAIN OUT SETUP 1&2 button
(Figure 13). On release, the LED flashes, and the Auto
EQ routine begins.
2. The EVO loudspeaker connected to MAIN OUTPUT
1A is instructed to Auto EQ and generates its own test
signal. This lasts for a few seconds. It is recommended
that during the test signal, background noise is kept to a
minimum. It takes about 40 seconds after the test signal
for the EVO loudspeaker’s built-in computer to adjust
and acoustically optimize itself to its environment.
3. Once set, an instruction is automatically sent to the
EVO loudspeaker connected to MAIN OUTPUT 2B.
If an EVO loudspeaker is connected, then it also
performs its own Auto EQ routine. If an EVO loud-
speaker is not connected or when the EVO loudspeaker
connected to MAIN OUTPUT 2B has completed its
Auto EQ routine, the EQ SET indicator will light.
4. At the same instant EQ SET lights up, AEQ ON also
illuminates indicating that Auto EQ is on.
Testing Auto EQ
1. Pass program signal to EVOi.net and listen to the result
of Auto EQ.
2. Press the AUTO EQ button (the LED will illuminate
when Auto EQ is active) and listen to the ‘Before &
After’Auto EQ.
3. If the result of Auto EQ is desirable then continue, if
not then:
i. Check the position and aim of the EVO loud-
speakers, CLEAR AUTO EQ (see below) and
repeat the Auto EQ routine.
ii. The Measurement Microphone may not be
located in a position that strongly reflects the
natural acoustics of the room. CLEAR AUTO
EQ (see below), move the Measurement
Microphone a few feet and repeat the Auto EQ
routine.
Pressing any button during the Auto EQ routine will
abort the process and settings will return to their previous
values.
If an error is detected during the Auto EQ routine, this will
be shown on the SPEAKER STATUS indicators and an
attempt will be made to restore any Auto EQ settings to
their previous values.
Clear Auto EQ
Press the round MAIN OUT SETUP 1&2 button again and
the Auto EQ routine will run again. Previous Auto EQ
settings do not have to be cleared first.
Press-and-hold this button and all of the previous Auto EQ
settings will clear and the EQ SET INDICATOR will go
out as will the AEQ ON INDICATOR.
SETTINGS AUTO EQ SETTING
LOCKED EQ SET
TEST AEQ ON
MAIN OUT
SETUP 1&2
EQ SET
AUX OUT
SETUP 3&
HOLD TO CLEAR MAIN HOLD TO CLEAR MAIN
Figure 13 - Main Out
Setup Button
Figure 14 - The Auto EQ Button

E Oi.net
13
LINK OUT LINK IN
B 3 A 2 B 1 A
INTERFACE FLOATING BALANCED OUTPUTS
MONO
SUM
MONO
SUM
Figure 15 - AUX Out
Speakers 3A and 4B
INSTALLATIONS/SETUP
SETTINGS AUTO EQ SETTING
LOCKED EQ SET
TEST AEQ ON
MAIN OUT
SETUP 1&2
EQ SET
AUX OUT
SETUP 3&
HOLD TO CLEAR MAIN HOLD TO CLEAR MAIN
Using More Than Two EVO Loud-
speakers
If your system consists of more than two EVO loudspeak-
ers then these auxiliary/delay systems should be hooked up
to outputs 3A and 4B, the AUX OUT Loudspeakers.
Performing Auto EQ for AUX OUT Loudspeakers
Once the Measurement Microphone has been positioned
and the SETTINGS LOCKED function has been disabled,
running the Auto EQ routine is exactly the same as for the
MAIN OUT SETUP 1&2.
Follow steps 1 – 4 from page 12, pressing AUX OUT
SETUP 3&4 instead of MAIN OUT 1&2.
Placing Measurement Microphone for AUX E O
Loudspeakers
For applications of more than two EVO loudspeakers
hooked up to outputs 3A and 4B(the AUX OUT outputs),
optimum placement of the Measurement Microphone is
illustrated below in Figure 16.
Ideal placement of the Measurement Microphone is again
determined by following the simple height-to-depth ratio of
1:2, where, for a given loudspeaker height the optimum
position is a distance twice the height away from it, into the
listener area. It is still crucial that the Measurement
Microphone remains on the central axis of the room or
listener area, equidistant from each loudspeaker.
At step 4, once the AEQ ON indicator has illuminated, the
Auto EQ for all connected EVO Loudspeakers can be
listened to simultaneously. See Testing Auto EQ.
If, as the result of this listening test, the Auto EQ set is not
desirable, then the settings can be cleared. See Clear Auto
EQ, and Auto EQ can be repeated.
Figure 17 - AUX Out
Auto EQ Setup
Figure 16 - Measurement Microphone Placement for Auto EQ of Aux Speakers 3A and 4B

E Oi.net
14
INSTALLATIONS/SETUP
DELAY SETTING
EVO Loudspeakers hooked up to AUX OUT 3A & 4B
outputs can be instructed to automatically set their correct
delay and level to perform optimally with EVO Loudspeak-
ers hooked up to MAIN OUT 1A & 2B outputs. A Haas
delay will also be added to the AUX OUT Loudspeakers to
make sure the MAIN OUT Loudspeakers are the acoustic
focus. Before starting, check that the LOCKED indicator is
off. If it is on, then use the rear panel switch (Feature 14,
page 6) to enable the DELAY SET button.
1. Position the Measurement Microphone in the optimum
position. This is located equidistant from each AUX
(delay) EVO Loudspeaker (in most cases on the central
axis of the listening area), approximately 10 feet away.
Pressing any button during the Delay Setting routine will
abort the process and settings will return to previous
values.
If an error is detected during the Delay Setting routine, this
will be shown on the SPEAKER STATUS indicators, and
an attempt will be made to restore any Delay settings to
their previous values.
Clear Delay Setting
Press the round DELAY SET button again and the Delay
Setting routine will run again. Previous Delay Settings do
not have to be cleared first.
Press-and-hold this button and all previous Delay settings
will clear and the DELAY SET indicator will go out.
Locking the Settings
After each SETTING routine, the LOCKED indicator will
flash once to remind you that this setting can be locked.
Once the desired SETTINGS routines have been per-
formed and all are satisfactory, they can be “locked in” as
the default or NEUTRAL system settings.
1. On the rear panel, use a pin or matchstick to engage the
LOCKOUT SWITCH (Feature 14, page 6).
2. Once engaged, the LOCKED indicator will illuminate
continuously.
3. All SETTING buttons will now be disabled until the
Lockout Switch is disengaged.
10'
AUTO EQ SETTING DELAY SETTING POWER
EQ SET
AEQ ON
MAIN OUT
SETUP 1&2
EQ SET
AUX OUT
SETUP 3&
HOLD TO CLEAR MAIN HOLD TO CLEAR MAIN
DELAY SET
SETUP
HOLD TO CLEAR DELAY RS-232
LINK OUT LINK IN
B 3 A
INTERFACE FLOATING BALAN
MONO
SUM
2. Press the round delay SETUP button. When the button
is released the SETUP indicator flashes and the EVO
Loudspeakers hooked up to the MAIN OUT outputs
emit a test signal. Then the EVO Loudspeakers hooked
up to the AUX OUT outputs emit a test signal.
3. When the correct delay and level for the AUX E O
Loudspeaker/s have been set the DELAY SET
indicator illuminates.
Figure 18: Measurement Mic Placement for Setting Delay
Figure 19: Delay Setup Button
Figure 20: Lockout Switch

E Oi.net
15
LI E OPERATION
ANTI FEEDBACK CONTROL EQ SELECT SETTINGS
FIXED AFC SET
FILTERS FREE 1
2
3
LIVE AFC ON
MUSIC I
MUSIC II
SPEECH
NEUTRAL
LOCKED
TEST
FIXED SETUP
HOLD TO CLEAR FIXED HOLD TO CLEAR LIVE
ANTI FEEDBACK CONTROL
Two different types of Anti Feedback Control engines can
be initiated and set up via EVOi.net: LiveAnti Feedback
Control and FixedAnti Feedback Control.
LiveAnti Feedback Control is designed to be used during
a performance. Once initiated, six dynamic filters are set
into action, instructed to search for and eliminate feedback
once found. When feedback is detected, a filter is placed to
eliminate it before it “runs away”. If additional feedback is
found, another filter is used. The FILTERS FREE
indicators tell you how many of the six filters are left.
Fixed Anti Feedback Control is designed to eliminate
feedback before a performance begins, a routine possibly
done during a soundcheck. For a fixed stage setup of
microphones, once initiated, six filters are available to
eliminate feedback. The FILTERS FREE indicators also
tell you how many filters have been used.
Note: There should be no feedback with a correctly set up
and operated sound reinforcement system. The general idea
of the FILTERS FREE indicators is as a guide to the
operator. If all the Anti Feedback Filters have been used,
this is a strong indication that the whole system needs
adjustment. Typically this is confined to the mix.
SELECTING SYSTEM EQ
The total EVO System can be optimized for an individual
program using the EQ SELECT button (Figure 21). Each
press of the button will apply a different EQ curve to the
entire system, very much like the way a domestic HiFi or
car stereo EQ is used to optimize the system for different
types of music. The settings scroll through as follows:
NEUTRAL The default start-up EQ or last set Auto EQ.
SPEECH An EQ curve that optimizes the system
performance for SPEECH.
MUSIC I Ideal for LIVE music performance.
MUSIC II Recommended for the enhancement of
RECORDED MUSIC playback.
Figure 21: EQ Select Button

E Oi.net
16
LI E OPERATION
Live Anti Feedback Control
Initiate Live Anti Feedback Control by pressing the square
button. LI E AFC ON will illuminate. As feedback is
found, filters will be used to eliminate it.
Now very slowly push the master faders up on the mixer
(the slower the action, the more accurate the detection and
allocation of filters will be). If feedback occurs, each EVO
Loudspeaker will eliminate it. As you continue to push the
faders up more feedback may occur at other frequencies,
and you will see that the FILTERS FREE indicators show
more filters being used.
When all the filters have been used, the FIXED SETUP
indicator will stop flashing. You can quit the FIXED AFC
setup at any time by pressing any button as long as all of
the available filters have not been used. The FIXED AFC
SET indicator will illuminate and Fixed Anti Feedback
Control has been set and is ready to go.
It is advisable to keep extraneous noises to a minimum
during this procedure to prevent inappropriate allocation of
filters.
Clearing Anti Feedback Filters
Both sets of Live and Fixed Anti Feedback filters can be
cleared by pressing and holding their respective buttons. As
you hold the button each allocated filter is removed
sequentially. The FILTERS FREE indicators will show
filters being removed.
If during this process a filter is removed and feedback
occurs, releasing the button will instantaneously re-insert
the filter.
PANIC
If you run into problems with any portion of the system
setup and operation, it is possible to reset all EVO
loudspeaker settings by pressing all square LI E AFC ON,
EQ SELECT and AEQ ON buttons simultaneously. This
will restore the factory default settings.
It is possible to reset the settings in the EVO loudspeakers
using data stored in EVOi.net, see Power Up Operation on
page 9 for further information.
SPEAKER STATUS ANTI FEEDBACK CONTROL EQ SELECT
1 2 3
WARNING
OKAY
FIXED AFC SET
FILTERS FREE 1
2
3
LIVE AFC ON
MUSIC I
MUSIC II
SPEECH
NEUTRAL
FIXED SETUP
HOLD TO CLEAR FIXED HOLD TO CLEAR LIVE
SPEAKER STATUS ANTI FEEDBACK CONTROL EQ SELECT
1 2 3
WARNING
OKAY
FIXED AFC SET
FILTERS FREE 1
2
3
LIVE AFC ON
MUSIC I
MUSIC II
SPEECH
NEUTRAL
FIXED SETUP
HOLD TO CLEAR FIXED HOLD TO CLEAR LIVE
Once all the
available
filters have
been used, as indicated by FILTERS
FREE 1 illuminating in RED, the
Live Anti Feedback engine will
continue to eliminate feedback, reassigning the oldest or
first placed filter to the newest feedback frequency. This
will continue, but the RED LED indicates that there is a
problem with the performance mix that really should be
addressed, by either identifying the problem microphone
and reducing its individual channel fader or by reducing the
overall level, bringing down the master faders.
Fixed Anti Feedback Control
Set up the performance system on stage for normal
operation, for example, by placing all microphones in their
typical positions and faders on the mixing desk set to that
of a typical mix. Set the master faders initially in their
minimum settings.
FIXED AFC setup can only be performed if LI E AFC is
off. If the LI E AFC indicator on EVOi.net is on, press
and hold the LI E AFC button until the filter indicators
and the LI E AFC indicators are extinguished.
Now press-and-hold the round FIXED AFC SETUP
button until the FIXED SETUP indicator starts flashing.
Figure 23 - Live
Anti Feedback
On/Off
Figure 24 Fixed Anti
Feedback On/Off

E Oi.net
17
EVOi.net Rear
(NOTE: For clarity, power connections are not shown.)
Speaker Placement In Room
XLR Signal Cable
EVOi.324
Input
EVOi.324
Main
Audio Output
(from Mixer)
IMPORTANT: Make sure POWER is off
before making connections. MonoMono
Mono
In
Main Mono
XLR Signal Cable
Approximate measurement microphone placement.
1
1 = Auto EQ. Main Out Setup 1&2
APPLICATIONS
E Oi.net IN RECTANGULAR ROOMS
EVOi.net is the “network” center of any EVO Loudspeaker System. It facilitates access to all EVO Loudspeaker functions
and monitoring. EVO Loudspeaker Systems have been optimized for small to mid-size venues, where a pair will sufficiently
reinforce sound for an audience of up to five hundred people. They have been designed with specific applications in mind:
schools and sports facilities; places of worship; and performance venues. Typically the program of events are quite varied
and high quality reinforcement is required for speech, live music and recorded music playback. This section refers to typical
applications identified in the EVOi.324 Users Guide and describes how to hook up EVOi.net and optimize the placement
and position of the dedicated Measurement Microphone. These are very simple instructions and are for ideal situations.As
guidelines, they are approximate and it may not be possible to follow strict practice. The beauty of EVO is that all the setup
routines only take a few moments and that if one configuration doesn’t work, then re-setting the entire system is only a few
moments away!
Small Rectangular Room:
E Oi.net + 1 Main (Mono) E Oi.324
For the simplest EVO System, EVOi.net is hooked up as
illustrated below. The inset diagram indicates the approxi-
mate location of the Measurement Microphone (for
accurate placement details see ‘Placing Measurement
Microphone for MAIN EVO Loudspeakers’ page11).
Remember to engage the MONO SUM switch!

E Oi.net
18
APPLICATIONS
E Oi.net IN RECTANGULAR ROOMS (continued)
Longer Rectangular Room:
E Oi.net + 1 Main (Mono) E Oi.324 + 1 Delay (Mono) E Oi.324
In a longer rectangular room, additional coverage may be required. Page 12 of the EVOi.324 Users Guide illustrates a
typical application. The diagram below illustrates the hook-up required and typical Measurement Microphone placement,
see details page 12 . The inset diagram also show the order of Measurement Microphone placements when settingAuto EQ
on MAIN and AUX (Delay), also DELAY SETUP Microphone position. Remember to engage the MONO SUM switch.
Approximate measurement microphone placement.
1 = Auto EQ. Main Out Setup 1A
2 = Auto EQ. Aux Out Setup 3A
3 = Delay Setup
EVOi.net Rear
(NOTE: For clarity, power connections are not shown.)
Speaker Placement In Room
XLR Signal Cable
EVOi.324
Input EVOi.324
Input
EVOi.324
Delay
EVOi.324
Main
Audio Output
(from Mixer)
IMPORTANT: Make sure POWER is off
before making connections. MonoMono
Main Mono
Delay Mono
Mono
Mono
InIn
XLR Signal Cables
23 1